build

#!/bin/bash

# Bomb out on any errors
set -e 

# Setup the environment
export HOME=/home/admin
export PATH=$PATH:$HOME/droid/bin
export ANDROID_NDK=~/droid/android-ndk
export TARGET=/target
export PROGRAMS="dropbear dropbearkey dbclient scp"

# Download the latest version of dropbear SSH
if [ ! -f ~/dropbear-2015.67.tar.bz2 ]; then
    wget -O ~/dropbear-2015.67.tar.bz2 https://matt.ucc.asn.au/dropbear/dropbear-2015.67.tar.bz2
fi

#if [ ! -f ~/config.sub ]; then
#   wget -O config.sub "http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD"
#fi

#if [ ! -f ~/config.guess ]; then
#   wget -O config.guess "http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD"
#fi

for ARCH_NAME in mips arm x86; do

    for BIN_TYPE in nopie pie; do

        # Create the output directory
        mkdir -p $TARGET/$ARCH_NAME/$BIN_TYPE;

        # Start each build with a fresh source copy
        cd ~
        rm -rf ~/dropbear-2015.67
        tar xjf dropbear-2015.67.tar.bz2
        cd dropbear-2015.67

	# Apply the new config.guess and config.sub
	cp ~/config.guess ~/config.sub .

	# Apply the Android patch
        patch -p1 <~/dropbear-android.patch

        case "$ARCH_NAME" in
            
            x86)
                echo "Compiling for x86"
                HOST=i686-linux-android
                TOOLCHAIN=${ANDROID_NDK}/default-x86-toolchain
                COMPILER=${TOOLCHAIN}/bin/i686-linux-android-gcc
                STRIP=${TOOLCHAIN}/bin/i686-linux-android-strip
                SYSROOT=${ANDROID_NDK}/platforms/android-19/arch-x86
                ;;
            arm)
                echo "Compiling for ARM"
                HOST=arm-linux
                TOOLCHAIN=${ANDROID_NDK}/default-arm-toolchain
                COMPILER=${TOOLCHAIN}/bin/arm-linux-androideabi-gcc
                STRIP=${TOOLCHAIN}/bin/arm-linux-androideabi-strip
                SYSROOT=${ANDROID_NDK}/platforms/android-19/arch-arm
                ;;
            mips)
                echo "Compiling for MIPS"
                HOST=mipsel-linux-android
                TOOLCHAIN=${ANDROID_NDK}/default-mips-toolchain
                COMPILER=${TOOLCHAIN}/bin/mipsel-linux-android-gcc
                STRIP=${TOOLCHAIN}/bin/mipsel-linux-android-strip
                SYSROOT=${ANDROID_NDK}/platforms/android-19/arch-mips
                ;;

        esac

        export CC="$COMPILER --sysroot=$SYSROOT"
        
        if [ $BIN_TYPE == "pie" ]; then
            export CFLAGS="-g -O2 -pie -fPIE"
            # Use the default platform target for pie binaries 
            unset GOOGLE_PLATFORM
        else 
            export CFLAGS="-g -O2"
            export GOOGLE_PLATFORM=9
        fi

	./configure --host=$HOST --disable-utmp --disable-wtmp --disable-utmpx --disable-zlib --disable-syslog
	echo "#define USE_DEV_PTMX 1" >> config.h

	make PROGRAMS="$PROGRAMS"

	for PROGRAM in $PROGRAMS; do
	    $STRIP $PROGRAM
	done 

        cp $PROGRAMS $TARGET/$ARCH_NAME/$BIN_TYPE/

    done

done